Finding the Fourth Proportional to 9,531.28, 13,153.69 and 5,282.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,531.28 : 13,153.69 = 5,282.25 : x
2. Step 2: Convert to fraction form
   9,531.28/13,153.69 = 5,282.25/x
3. Step 3: Cross multiply
   9,531.28x = 13,153.69 × 5,282.25
4. Step 4: Simplify right side
   9,531.28x = 69,481,065.80
5. Step 5: Solve for x
   x = 69,481,065.80/9,531.28
6. Step 6: Final answer
   x = 7,289.80